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At £375, this used Hafler P500 is a strong bargain, sitting well below the typical used market where comparable units often list around £480–£500 (converted from the $600 Reverb listing). Even accounting for the unknown condition, the price is aggressively low for a 255W-per-channel MOSFET power amp that delivers 800W in mono mode, making it an excellent entry point for a serious buy.
The P500 is well-regarded for its solid MOSFET build, low distortion under 0.25% across the audio band, and rugged toroidal power supply that handles demanding loads. Its vintage kit heritage and proven reliability in both stereo and bridged mono make it a versatile, high-value addition to any hi-fi or pro audio setup. With no red flags raised by the price alone, this listing represents a genuine buying opportunity for an enthusiast willing to verify condition.
Independent perspective — not a price guarantee. Always verify condition, accessories and provenance before purchase.
Hafler is an American hi-fi brand rooted in the postwar audio hobbyist era. It traces back to David Hafler, who co-founded Acrosound in 1950 and later helped launch Dynaco in 1954; he then founded the David Hafler Company in 1972, carrying forward his long-standing focus on accessible, high-performance audio. The brand is closely associated with the U.S. DIY-to-assembled tradition that shaped early hi-fi culture.
Hafler became best known for amplifiers and preamps, especially solid-state MOSFET power amps and matching line-stage products. Classic models such as the DH-101, DH-110, DH-200, DH-220, DH-500, and XL-280 established the name, and the company also had a role in speaker design during the broader Hafler/Dynaco era. While not a turntable, DAC, or headphone specialist in its classic identity, the brand’s legacy is strongest in amplification.
In the market, Hafler sits more in the respected value and vintage-audiophile lane than the luxury tier. Its appeal comes from engineering credibility, straightforward designs, and a reputation for honest sound and reliability rather than exotic finishes or ultra-premium pricing. Today, it is best thought of as a classic hi-fi name with strong collector interest and enduring brand recognition among enthusiasts.
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